Tags: Russia

The United States imposed further Russia and Ukraine-related sanctions on Thursday, adding associates of a billionaire Russian gas trader, Crimean port operators and former Ukrainian officials to its list of those it is penalizing in response to Russia's actions in Ukraine.

Alexei Venediktov, one of Russia's most prominent journalists, does not go out without a bodyguard and does not answer mobile phone calls for fear of being tracked.

Russia is pushing for a greater U.N. role in an investigation into what caused the downing of a passenger plane in eastern Ukraine after dismissing a proposal by Malaysia, Australia, the Netherlands, Belgium and Ukraine for a U.N.-backed tribunal.